The following two tests failed in the JDK21 CI:

java/nio/channels/AsyncCloseAndInterrupt.java
java/nio/channels/FileChannel/Transfer.java

after the integration of:

JDK-8303260 (fc) FileChannel::transferFrom should support position > size()

The following fix was also included in the same integration:

JDK-8298619 java/io/File/GetXSpace.java is failing

However, that changeset appears to be closely related to
the java/io/File/GetXSpace.java itself.

Here's a "reasons column" snippet from the AsyncCloseAndInterrupt.java failure:

Exception: java.lang.Exception: FileChannel/transferFrom/pre-interrupt threw an exception
Exception: java.lang.RuntimeException: Channel still open

Here's a "reasons column" snippet from the Transfer.java failure:

Exception: java.lang.RuntimeException: Wrote past file size
Exception: java.lang.Exception: failures: ...

For some reason, the log file links are not working.